Pen



FIG. 1 is a front perspective view of the pen comprising the present invention;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a bottom view thereof;

FIG. 8 is a rear perspective view thereof; and,

FIG. 9 shows another perspective view thereof in use.

The broken lines in FIG. 9 are included to show environmental features that form no part of the claimed design. 

CLAIM We claim the ornamental design for a pen, as shown and described. 